Abstract Triethylamine-promoted domino cyclodimerization reaction of 3-phenacylideneoxindolines with amino ester hydrochlorides in acetonitrile afforded substituted dispiro[indoline-3,1′-cyclopentane-3′,3″-indolines] in good yields. The relative configuration of the major diastereoisomers was determined by the X-ray diffraction analysis of three single crystal structures.
摘要
三乙胺促进 3-phenacylideneoxindolines 与
氨基酯盐酸盐在
乙腈中的多米诺环二聚反应以良好的收率得到取代的二螺[indoline-3,1'-cyclopentane-3',3"-indolines]。主要非对映异构体的相对构型通过三种单晶结构的 X 射线衍射分析确定。